Qasim, Muhammad, Mohammad Asif Khan, and Muhammad Haneef. “Stratigraphic Characterization of the Early Cambrian Abbottabad Formation in the Sherwan Area, Hazara Region, N. Pakistan: Implications for Early Paleozoic Stratigraphic Correlation in NW Himalayas, Pakistan ”. Journal of Himalayan Earth Sciences 47, no. 1 (March 31, 2014): 25-40. Accessed March 11, 2025. http://ojs.uop.edu.pk/jhes/article/view/1680.